Removal Procedure

Remove the left hand catalytic convert.
Remove the engine wiring harness ground bolt. See Fig 1.
Lower the vehicle.
Remove the ground strap nut from the stud at the front of dash. See Fig 2.
Remove the ground strap from the stud.

Fig 1: Locating Engine Wiring Harness Ground Bolt
Courtesy of GENERAL MOTORS CORP.

Fig 2: Locating Ground Strap At Front Of Dash
Courtesy of GENERAL MOTORS CORP.